package com.shong;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Main {


    private static final Logger logger = LoggerFactory.getLogger(Main.class);

    public static void main(String[] args) {
        logger.error("main                          mian");
        logger.trace("main                          mian");

        System.out.println("Hello World!");
    }
}
